12405304115 has 4 divisors (see below), whose sum is σ = 14886364944. Its totient is φ = 9924243288.

The previous prime is 12405304099. The next prime is 12405304133. The reversal of 12405304115 is 51140350421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51140350421 = 37 ⋅1382171633.

It is a cyclic number.

It is not a de Polignac number, because 12405304115 - 2⁴ = 12405304099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240530407 + ... + 1240530416.

It is an arithmetic number, because the mean of its divisors is an integer number (3721591236).

Almost surely, 2^12405304115 is an apocalyptic number.

12405304115 is a deficient number, since it is larger than the sum of its proper divisors (2481060829).

12405304115 is an equidigital number, since it uses as much as digits as its factorization.

12405304115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481060828.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12405304115 its reverse (51140350421), we get a palindrome (63545654536).

The spelling of 12405304115 in words is "twelve billion, four hundred five million, three hundred four thousand, one hundred fifteen".